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    <title>CCleaner - 专业系统优化工具</title>
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</head>
<body class="bg-gray-50">
    <!-- Hero Section -->
    <section class="hero-gradient text-white py-20 px-4 md:py-32">
        <div class="container mx-auto max-w-6xl px-4">
            <div class="flex flex-col md:flex-row items-center">
                <div class="md:w-1/2 mb-10 md:mb-0">
                    <h1 class="text-4xl md:text-5xl font-bold mb-4 leading-tight">让电脑重获新生</h1>
                    <h2 class="text-2xl md:text-3xl font-medium mb-6 opacity-90">CCleaner - 专业系统优化工具</h2>
                    <p class="text-lg md:text-xl mb-8 opacity-90 max-w-lg">
                        一键清理垃圾文件，修复系统问题，保护您的隐私安全。全球超过25亿次下载的专业选择。
                    </p>
                    <div class="flex flex-wrap gap-4">
                        <a href="https://www.ccleaner.com/" class="bg-white text-indigo-600 hover:bg-gray-100 font-semibold py-3 px-6 rounded-lg transition duration-300 transform hover:-translate-y-1 shadow-lg">
                            <i class="fas fa-download mr-2"></i>立即下载
                        </a>
                        <a href="#features" class="border border-white text-white hover:bg-white hover:text-indigo-600 font-semibold py-3 px-6 rounded-lg transition duration-300">
                            <i class="fas fa-info-circle mr-2"></i>了解更多
                        </a>
                    </div>
                </div>
                <div class="md:w-1/2 flex justify-center">
                    <img src="https://www.ccleaner.com/sites/default/files/styles/product_screenshots/public/2021-05/ccleaner-screenshot.png?itok=z5hcUaq3" 
                         alt="CCleaner界面截图" 
                         class="rounded-xl shadow-2xl max-w-full h-auto border-4 border-white">
                </div>
            </div>
        </div>
    </section>

    <!-- Features Section -->
    <section id="features" class="py-16 bg-white">
        <div class="container mx-auto max-w-6xl px-4">
            <div class="text-center mb-16">
                <h2 class="text-3xl md:text-4xl font-bold mb-4 text-gray-800">核心功能</h2>
                <div class="w-24 h-1 bg-indigo-500 mx-auto"></div>
            </div>
            
            <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-8">
                <div class="bg-gray-50 rounded-xl p-6 card-hover">
                    <div class="feature-icon mb-4">
                        <i class="fas fa-broom"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-3 text-gray-800">系统清理</h3>
                    <p class="text-gray-600">高效清除临时文件、日志和垃圾数据，释放宝贵磁盘空间，提升系统运行效率。</p>
                </div>
                
                <div class="bg-gray-50 rounded-xl p-6 card-hover">
                    <div class="feature-icon mb-4">
                        <i class="fas fa-tools"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-3 text-gray-800">注册表修复</h3>
                    <p class="text-gray-600">扫描并修复无效的注册表项，解决系统错误和崩溃问题，保持系统稳定性。</p>
                </div>
                
                <div class="bg-gray-50 rounded-xl p-6 card-hover">
                    <div class="feature-icon mb-4">
                        <i class="fas fa-user-shield"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-3 text-gray-800">隐私保护</h3>
                    <p class="text-gray-600">彻底清除浏览历史、cookies等上网痕迹，防止个人信息泄露，保护您的数字隐私。</p>
                </div>
                
                <div class="bg-gray-50 rounded-xl p-6 card-hover">
                    <div class="feature-icon mb-4">
                        <i class="fas fa-trash-alt"></i>
                    </div>
                    <h3 class="text-xl font-bold mb-3 text-gray-800">软件卸载</h3>
                    <p class="text-gray-600">完全移除不需要的应用程序，包括残留文件和注册表项，实现干净卸载。</p>
                </div>
            </div>
        </div>
    </section>

    <!-- Key Features Section -->
    <section class="py-16 bg-gray-50">
        <div class="container mx-auto max-w-6xl px-4">
            <div class="text-center mb-16">
                <h2 class="text-3xl md:text-4xl font-bold mb-4 text-gray-800">主要特点</h2>
                <div class="w-24 h-1 bg-indigo-500 mx-auto"></div>
            </div>
            
            <div class="grid grid-cols-1 md:grid-cols-3 gap-8">
                <div class="flex items-start">
                    <div class="bg-indigo-100 p-3 rounded-lg mr-4">
                        <i class="fas fa-check-circle text-indigo-600 text-xl"></i>
                    </div>
                    <div>
                        <h3 class="text-lg font-bold mb-2 text-gray-800">操作简单</h3>
                        <p class="text-gray-600">直观的用户界面设计，一键完成系统清理，无需复杂设置。</p>
                    </div>
                </div>
                
                <div class="flex items-start">
                    <div class="bg-indigo-100 p-3 rounded-lg mr-4">
                        <i class="fas fa-shield-alt text-indigo-600 text-xl"></i>
                    </div>
                    <div>
                        <h3 class="text-lg font-bold mb-2 text-gray-800">安全可靠</h3>
                        <p class="text-gray-600">经过多年市场验证的清理工具，全球数百万用户信赖。</p>
                    </div>
                </div>
                
                <div class="flex items-start">
                    <div class="bg-indigo-100 p-3 rounded-lg mr-4">
                        <i class="fas fa-language text-indigo-600 text-xl"></i>
                    </div>
                    <div>
                        <h3 class="text-lg font-bold mb-2 text-gray-800">多语言支持</h3>
                        <p class="text-gray-600">支持包括简体中文在内的多种语言界面，全球用户友好体验。</p>
                    </div>
                </div>
                
                <div class="flex items-start">
                    <div class="bg-indigo-100 p-3 rounded-lg mr-4">
                        <i class="fas fa-bolt text-indigo-600 text-xl"></i>
                    </div>
                    <div>
                        <h3 class="text-lg font-bold mb-2 text-gray-800">轻量高效</h3>
                        <p class="text-gray-600">程序体积小，运行速度快，清理过程不影响系统性能。</p>
                    </div>
                </div>
                
                <div class="flex items-start">
                    <div class="bg-indigo-100 p-3 rounded-lg mr-4">
                        <i class="fas fa-cogs text-indigo-600 text-xl"></i>
                    </div>
                    <div>
                        <h3 class="text-lg font-bold mb-2 text-gray-800">深度清理</h3>
                        <p class="text-gray-600">提供高级清理选项，可自定义清理范围和深度。</p>
                    </div>
                </div>
                
                <div class="flex items-start">
                    <div class="bg-indigo-100 p-3 rounded-lg mr-4">
                        <i class="fas fa-sync-alt text-indigo-600 text-xl"></i>
                    </div>
                    <div>
                        <h3 class="text-lg font-bold mb-2 text-gray-800">定期更新</h3>
                        <p class="text-gray-600">持续更新支持最新Windows版本和应用程序，保持最佳兼容性。</p>
                    </div>
                </div>
            </div>
        </div>
    </section>

    <!-- Use Cases Section -->
    <section class="py-16 bg-white">
        <div class="container mx-auto max-w-6xl px-4">
            <div class="text-center mb-16">
                <h2 class="text-3xl md:text-4xl font-bold mb-4 text-gray-800">适用场景</h2>
                <div class="w-24 h-1 bg-indigo-500 mx-auto"></div>
            </div>
            
            <div class="grid grid-cols-1 md:grid-cols-2 gap-8">
                <div class="bg-indigo-50 rounded-xl p-8">
                    <div class="flex items-center mb-4">
                        <div class="bg-indigo-100 p-3 rounded-lg mr-4">
                            <i class="fas fa-desktop text-indigo-600 text-xl"></i>
                        </div>
                        <h3 class="text-xl font-bold text-gray-800">定期维护电脑性能</h3>
                    </div>
                    <p class="text-gray-600 drop-cap">随着电脑使用时间的增加，系统中会积累大量临时文件和冗余数据，这些都会影响系统运行速度。定期使用CCleaner进行清理维护，可以有效保持电脑的最佳性能状态。</p>
                </div>
                
                <div class="bg-indigo-50 rounded-xl p-8">
                    <div class="flex items-center mb-4">
                        <div class="bg-indigo-100 p-3 rounded-lg mr-4">
                            <i class="fas fa-hdd text-indigo-600 text-xl"></i>
                        </div>
                        <h3 class="text-xl font-bold text-gray-800">清理磁盘空间</h3>
                    </div>
                    <p class="text-gray-600 drop-cap">当磁盘空间不足时，CCleaner可以帮助您快速识别并删除不必要的系统垃圾文件、缓存数据和大文件，释放宝贵的存储空间，避免因空间不足导致的系统问题。</p>
                </div>
                
                <div class="bg-indigo-50 rounded-xl p-8">
                    <div class="flex items-center mb-4">
                        <div class="bg-indigo-100 p-3 rounded-lg mr-4">
                            <i class="fas fa-lock text-indigo-600 text-xl"></i>
                        </div>
                        <h3 class="text-xl font-bold text-gray-800">保护个人隐私</h3>
                    </div>
                    <p class="text-gray-600 drop-cap">在共享电脑或出售设备前，使用CCleaner彻底清除上网记录、文档使用痕迹和应用程序活动记录，防止您的个人信息和浏览习惯被他人获取，确保隐私安全。</p>
                </div>
                
                <div class="bg-indigo-50 rounded-xl p-8">
                    <div class="flex items-center mb-4">
                        <div class="bg-indigo-100 p-3 rounded-lg mr-4">
                            <i class="fas fa-bug text-indigo-600 text-xl"></i>
                        </div>
                        <h3 class="text-xl font-bold text-gray-800">修复系统问题</h3>
                    </div>
                    <p class="text-gray-600 drop-cap">当系统出现卡顿、程序崩溃或异常错误时，CCleaner的注册表清理功能可以检测并修复错误的注册表项，解决许多常见的系统问题，避免重装系统的麻烦。</p>
                </div>
            </div>
        </div>
    </section>

    <!-- Version Comparison -->
    <section class="py-16 bg-gray-50">
        <div class="container mx-auto max-w-6xl px-4">
            <div class="text-center mb-16">
                <h2 class="text-3xl md:text-4xl font-bold mb-4 text-gray-800">版本选择</h2>
                <div class="w-24 h-1 bg-indigo-500 mx-auto"></div>
                <p class="text-gray-600 max-w-2xl mx-auto mt-4">CCleaner提供多个版本以满足不同用户需求，免费版已包含基本功能，专业版则提供更多高级功能。</p>
            </div>
            
            <div class="grid grid-cols-1 md:grid-cols-2 gap-8">
                <div class="bg-white rounded-xl shadow-md overflow-hidden">
                    <div class="bg-gray-100 px-8 py-6">
                        <h3 class="text-2xl font-bold text-gray-800 mb-2">免费版</h3>
                        <p class="text-gray-600">基础清理功能</p>
                    </div>
                    <div class="px-8 py-6">
                        <div class="mb-6">
                            <span class="text-4xl font-bold text-gray-800">¥0</span>
                            <span class="text-gray-500">/永久免费</span>
                        </div>
                        <ul class="space-y-3 mb-8">
                            <li class="flex items-start">
                                <i class="fas fa-check text-green-500 mt-1 mr-2"></i>
                                <span>基础系统清理</span>
                            </li>
                            <li class="flex items-start">
                                <i class="fas fa-check text-green-500 mt-1 mr-2"></i>
                                <span>注册表清理</span>
                            </li>
                            <li class="flex items-start">
                                <i class="fas fa-check text-green-500 mt-1 mr-2"></i>
                                <span>隐私保护</span>
                            </li>
                            <li class="flex items-start text-gray-400">
                                <i class="fas fa-times mt-1 mr-2"></i>
                                <span>自动清理</span>
                            </li>
                            <li class="flex items-start text-gray-400">
                                <i class="fas fa-times mt-1 mr-2"></i>
                                <span>实时监控</span>
                            </li>
                        </ul>
                        <a href="https://www.ccleaner.com/" class="block w-full bg-gray-200 hover:bg-gray-300 text-gray-800 font-semibold py-3 px-6 rounded-lg text-center transition duration-300">
                            下载免费版
                        </a>
                    </div>
                </div>
                
                <div class="bg-white rounded-xl shadow-lg overflow-hidden border-2 border-indigo-500 transform scale-105">
                    <div class="bg-indigo-500 px-8 py-6 text-white">
                        <h3 class="text-2xl font-bold mb-2">专业版</h3>
                        <p>高级清理与自动化功能</p>
                    </div>
                    <div class="px-8 py-6">
                        <div class="mb-6">
                            <span class="text-4xl font-bold text-gray-800">¥249</span>
                            <span class="text-gray-500">/年</span>
                        </div>
                        <ul class="space-y-3 mb-8">
                            <li class="flex items-start">
                                <i class="fas fa-check text-green-500 mt-1 mr-2"></i>
                                <span>包含所有免费版功能</span>
                            </li>
                            <li class="flex items-start">
                                <i class="fas fa-check text-green-500 mt-1 mr-2"></i>
                                <span>自动清理计划</span>
                            </li>
                            <li class="flex items-start">
                                <i class="fas fa-check text-green-500 mt-1 mr-2"></i>
                                <span>实时系统监控</span>
                            </li>
                            <li class="flex items-start">
                                <i class="fas fa-check text-green-500 mt-1 mr-2"></i>
                                <span>高级注册表清理</span>
                            </li>
                            <li class="flex items-start">
                                <i class="fas fa-check text-green-500 mt-1 mr-2"></i>
                                <span>优先级技术支持</span>
                            </li>
                        </ul>
                        <a href="https://www.ccleaner.com/ccleaner/pro" class="block w-full bg-indigo-600 hover:bg-indigo-700 text-white font-semibold py-3 px-6 rounded-lg text-center transition duration-300">
                            升级专业版
                        </a>
                    </div>
                </div>
            </div>
        </div>
    </section>

    <!-- Tips Section -->
    <section class="py-16 bg-white">
        <div class="container mx-auto max-w-6xl px-4">
            <div class="text-center mb-16">
                <h2 class="text-3xl md:text-4xl font-bold mb-4 text-gray-800">使用建议</h2>
                <div class="w-24 h-1 bg-indigo-500 mx-auto"></div>
            </div>
            
            <div class="max-w-3xl mx-auto">
                <div class="bg-indigo-50 rounded-xl p-8 mb-8">
                    <h3 class="text-xl font-bold mb-4 text-gray-800">最佳实践</h3>
                    <ul class="space-y-4">
                        <li class="flex items-start">
                            <div class="bg-white p-2 rounded-full mr-4">
                                <i class="fas fa-calendar-check text-indigo-600"></i>
                            </div>
                            <div>
                                <h4 class="font-bold text-gray-800">定期使用</h4>
                                <p class="text-gray-600">建议每周使用一次CCleaner进行系统清理，保持电脑最佳性能状态。</p>
                            </div>
                        </li>
                        <li class="flex items-start">
                            <div class="bg-white p-2 rounded-full mr-4">
                                <i class="fas fa-search text-indigo-600"></i>
                            </div>
                            <div>
                                <h4 class="font-bold text-gray-800">预览清理内容</h4>
                                <p class="text-gray-600">清理前先查看将被删除的文件列表，确保不会误删重要数据。</p>
                            </div>
                        </li>
                        <li class="flex items-start">
                            <div class="bg-white p-2 rounded-full mr-4">
                                <i class="fas fa-save text-indigo-600"></i>
                            </div>
                            <div>
                                <h4 class="font-bold text-gray-800">备份重要数据</h4>
                                <p class="text-gray-600">在进行注册表清理前，建议备份重要数据和系统，以防万一。</p>
                            </div>
                        </li>
                        <li class="flex items-start">
                            <div class="bg-white p-2 rounded-full mr-4">
                                <i class="fas fa-sliders-h text-indigo-600"></i>
                            </div>
                            <div>
                                <h4 class="font-bold text-gray-800">自定义设置</h4>
                                <p class="text-gray-600">根据个人需求调整清理选项，某些缓存文件可能需要保留。</p>
                            </div>
                        </li>
                    </ul>
                </div>
                
                <div class="bg-gray-800 rounded-xl p-8 text-white">
                    <h3 class="text-xl font-bold mb-4">专家建议</h3>
                    <div class="flex items-start mb-4">
                        <i class="fas fa-lightbulb text-yellow-300 mt-1 mr-3 text-xl"></i>
                        <p>对于高级用户，可以结合CCleaner的"自定义清理"功能，针对特定应用程序创建清理规则，实现更精确的清理效果。</p>
                    </div>
                    <div class="flex items-start">
                        <i class="fas fa-exclamation-triangle text-yellow-300 mt-1 mr-3 text-xl"></i>
                        <p>注册表清理有一定风险，建议初学者使用默认设置，或仅在问题排除时使用此功能。</p>
                    </div>
                </div>
            </div>
        </div>
    </section>

    <!-- Data Visualization -->
    <section class="py-16 bg-gray-50">
        <div class="container mx-auto max-w-6xl px-4">
            <div class="text-center mb-16">
                <h2 class="text-3xl md:text-4xl font-bold mb-4 text-gray-800">CCleaner工作原理</h2>
                <div class="w-24 h-1 bg-indigo-500 mx-auto"></div>
                <p class="text-gray-600 max-w-2xl mx-auto mt-4">CCleaner通过多种技术手段优化您的系统，以下是其主要工作流程和功能关系图</p>
            </div>
            
            <div class="bg-white rounded-xl shadow-md p-6">
                <div class="mermaid">
                    graph TD
                    A[CCleaner] --> B[系统清理]
                    A --> C[注册表修复]
                    A --> D[隐私保护]
                    A --> E[软件卸载]
                    
                    B --> F[临时文件]
                    B --> G[日志文件]
                    B --> H[缓存数据]
                    
                    C --> I[无效注册表项]
                    C --> J[损坏的快捷方式]
                    C --> K[冗余DLL文件]
                    
                    D --> L[浏览器历史]
                    D --> M[Cookies]
                    D --> N[自动填充数据]
                    
                    E --> O[完整卸载]
                    E --> P[残留文件清理]
                    E --> Q[注册表清理]
                    
                    style A fill:#4F46E5,color:#fff
                    style B fill:#7C3AED,color:#fff
                    style C fill:#9333EA,color:#fff
                    style D fill:#A855F7,color:#fff
                    style E fill:#C084FC,color:#fff
                </div>
            </div>
        </div>
    </section>

    <!-- CTA Section -->
    <section class="py-20 bg-indigo-600 text-white">
        <div class="container mx-auto max-w-6xl px-4 text-center">
            <h2 class="text-3xl md:text-4xl font-bold mb-6">立即体验CCleaner的强大功能</h2>
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